cheap（反义词-expensive

friend（形容词）-friendly

suggest（名词）-suggestion

usual（反义词）-seldom

hear（过去分词）-heard

close（副词）-closely

relax（形容词）-relaxed

awful（副词-awfully

discuss（名词-discussion

visible（反义词）-invisible

suit（形容词）-suitable

patiently（反义词）-impatient